Physics: The Hunting of the Quark

As they probe deeper into the heart of the
atom, discovering ever smaller and more mysterious particles and
particles within particles, scientists have succeeded in bringing the once
stable world of nuclear physics to a state of near chaos. Groping among
their new-found lambdas, pions, kaons, sigmas and other bits of matter
with strange names and even stranger characteristics, physicists hope
some day to restore order by finding a truly elemental particle  one
out of which all the others are made.

The need for this key building block of the universe became so great
that in 1962 Physicists...